Question 4(a)(i)
[Maximum number: 1]
A teacher investigates the count rate detected from a radioactive source.
State one source of background radiation.
IGCSE Physics 7.10 Background radiation Topic Practice
7.10 Background radiation
Explain the sources of background (ionising) radiation from Earth and space
Question 5(a)
[Maximum number: 1]
A material called granite is used as a work surface in a kitchen.
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Granite is formed naturally and contains radioactive isotopes.
The granite work surface contributes to the background radiation in the kitchen.
Give another naturally occurring source of background radiation.
Question 5(b)(i)
[Maximum number: 2]
An aircraft travels along a runway.
The aircraft takes off and reaches its maximum height above the ground.
At maximum height, the background radiation count rate is higher than on the ground.
Explain what is meant by background radiation.
Question 7(a)
[Maximum number: 2]
Radon is a radioactive gas that contributes to background radiation.
Describe what is meant by the term background radiation.